Container for air treating material

Abstract

A container for air treating materials comprising a base wherein said air treating material is suspended and an adjustably displaceable cover associated therewith, said base having sidewall segments with openings therebetween and projections extending from the top thereof adapted to engage a plurality of oblique grooves on the inner surface of said cover so as to facilitate the raising of the cover and the corresponding exposure of the openings to allow the diffusion of the air treating material.

What is claimed is: 
     
       1. A dispenser for volatile materials comprising a base part for said volatile material, said base having a plurality of sidewall segments with apertures therebetween, projections extending from the exterior surface of at least two opposing sidewall segments and support means positioned within the area defined by said sidewall segments for suspending a layer of said volatile material in an elevated position intersecting said apertures; and a cover for said base having at least one oblique groove on the interior of the side wall thereof,   said groove engaging said projections facilitating rotation and corresponding raising and lowering of said cover to conceal or partially or totally expose said apertures.   
     
     
       2. The dispenser of claim 1, wherein said layer of said volatile material comprises a solid substrate impregnated or coated on both surfaces thereof with said volatile material. 
     
     
       3. The dispenser of claim 1, wherein a self-supporting layer of volatile material is suspended on said support means. 
     
     
       4. The dispenser of claim 1, wherein at least one stop means is present in said at least one oblique groove, the positive engagement of said stop means and said corresponding projection effecting the support of said cover in an elevated position. 
     
     
       5. The dispenser of claim 4, wherein said cover has at least two opposing oblique grooves and each of said opposing oblique grooves has at least one first stop means positioned, respectively, at the same distance from the upper end of said groove such that when said projections contact said at least one first stop means, the elevation of said cover will be no greater than the distance of elevation of the lower surface of said layer, and at least one second stop means positioned, respectively, at the same distance from the upper end of said groove and at a distance greater than that of said at least one first stop means such that when said projections contact said at least one second stop means, the elevation of said cover will be at least equal to the distance of elevation of the upper surface of said layer. 
     
     
       6. The dispenser of claim 1, wherein said base has an annular recess on the periphery thereof for sealingly receiving the sidewall of said cover when said cover is in a closed position on said base. 
     
     
       7. The dispenser of claim 6, wherein said side wall of said cover terminates in an inwardly tapered wall section which sealingly engages said annular recess. 
     
     
       8. The dispenser of claim 1, wherein said sidewall segments are resilient and said projections are tapered upward to facilitate initial engagement of said base and said cover. 
     
     
       9. The dispenser of claim 1, wherein said support means are affixed to the interior surface of said sidewall segments. 
     
     
       10. The dispenser of claim 9, wherein post means for seating and retaining said layer is centrally positioned in said base. 
     
     
       11. A dispenser for volatile materials comprising a base part for said volatile material, said base having eight resilient sidewall segments with apertures therebetween, upwardly tapered projections extending from the exterior surface of each alternating sidewall segment and support means positioned within the area defined by said sidewall segments for suspending a solid substrate impregnated or coated on both surfaces thereof with said volatile material in an elevated position intersecting said apertures; and, a cover for said base having four equally spaced, identical, oblique grooves on the interior of the side wall thereof and a plurality of stop means in two opposed oblique grooves, said stop means being equally spaced, relative to one another, from the upper ends of the respective opposed grooves;   said grooves engaging said projections facilitating rotation and corresponding raising and lowering of said cover to conceal or partially or totally expose said apertures;   at least one equivalent first stop means in each groove being positioned such that when they are contacted by said projections, the cover will be raised to a maximum height corresponding to the distance of elevation of the lower surface of said layer, and at least one equivalent second stop means in each groove being positioned such that when they are contacted by said projections, the cover will be raised to a height corresponding to at least the distance of elevation of the upper surface of said layer.